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Suddenly, I got the database error from one of my Joomla administration area: DB function failed with error number 1030 Got error 28 from storage engine SQL=SELECT c.*, c.checked_out as checked_out_contact_category, g.name AS groupname, u.name AS editor, COUNT( DISTINCT s2.checked_out ) AS checked_out_count FROM ... AS c LEFT JOIN ... AS u ON u.id = c.checked_out LEFT JOIN ... AS g ON g.id = c.access LEFT JOIN ... AS s2 ON s2.catid = c.id AND s2.checked_out > 0 WHERE c.section = 'com_weblinks' AND c.published != -2 GROUP BY c.id ORDER BY c.ordering , c.ordering LIMIT 0, 100...

This seemed a database storage issue, but checking on my storage webhost has sufficient space.

Following might help:

• If indeed storage issue, delete unnecessary log, temporary files
• Database repair (for commercial cpanel, you can do this from MySQL section, or use any UI program like MySQL Administrator software to connect and repair remote database)
• Most likely your tmp memory is full, clear the tmp or request your webhost do it
• Check Joomla tmp file and safely delete files there (do not delete the index.html)
• Delete server logs and temporary files, request your webhost to do it for you if on managed/commercial hosting